PRISM© is a free program for seismic response
analysis of structures idealized as single-degree-of-freedom systems. The
main features of the program include modification of earthquake
records, calculation of response time histories of various
hysteresis models, and generation of elastic and inelastic response
spectra.
Main
features are:
·
Modification and correction of earthquake records
- Scaling and truncation of earthquake records
- Baseline correction
- Calculation of Arias intensity
·
Inelastic
response history analysis
- Application of various hysteresis models: Linear
elastic, Bi-linear, Tri-linear,
Modified
Takeda, Bouc-Wen, and Al-Bermani
- Calculation of acceleration, velocity, and displacement
response histories
- Monitoring force-displacement relationships
·
Generation
of response spectra
- Generation of elastic spectra
- Generation of constant-ductility inelastic spectra
- Representation of spectra in various formats